詹金斯的Maven构建失败了

Question

我有一个Maven项目，下面是目录结构：

maven_example/src
maven_example/target

在/src/main/java/maven_example/我有三个.java个文件：

Adder.java  MainClass.java  Subtractor.java

在/src/test/java/maven_example/我有三个文件：

AllTests.java  TestAdder.java  TestSubtractor.java

以下是我的pom.xml：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.infovision.maven_example</groupId>
  <artifactId>maven_example</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <build>
  <plugins>
    <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.3.2</version>
        <configuration>
            <source>1.8</source>
            <target>1.8</target>
        </configuration>
    </plugin>
    <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.4</version>
            <configuration>
                <archive>
                    <manifest>
                        <mainClass>src.main.java.maven_example.MainClass</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin>
   </plugins>
  </build>
<!-- http://mvnrepository.com/artifact/junit/junit -->
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
    </dependency>
  </dependencies>
</project>

因此，当我从命令行运行mvn clean verify时，它会成功。

但在Jenkins构建失败时出现以下错误消息：

[maven_example] $ /usr/lib/jvm/java-8-oracle/bin/java /usr/share/maven -cp /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-agent-1.5.jar:/usr/share/maven/boot/plexus-classworlds-2.x.jar org.jvnet.hudson.maven3.agent.Maven3Main /usr/share/maven /var/cache/jenkins/war/WEB-INF/lib/remoting-2.59.jar /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-1.5.jar /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-commons-1.5.jar 41467
Error: Could not find or load main class .usr.share.maven
ERROR: Failed to launch Maven. Exit code = 1
Finished: FAILURE

以下是我的Jenkins设置：

Root POM：/home/ishan/sf_shared/my_repo/maven/maven_example/pom.xml

目标和选项：clean verify

这里可能出现什么问题？